Title :
Photo darkening of ytterbium fiber lasers and amplifiers
Author :
Mattsson, Kent E.
Author_Institution :
NKT Photonics A/S, Birkerød, Denmark
Abstract :
Photo darkening (PD) of ytterbium co-doped silica fibers in lasers and amplifiers is experimentally investigated and a numeric model for PD is proposed. Relaxation to well-defined equilibrium state of core PD is observed both for unseeded amplifier and high power fiber laser operation, depending on the Yb inversion and output power flux.
Keywords :
Fiber lasers; High power amplifiers; High power fiber lasers; Laser modes; Numerical models; Operational amplifiers; Power amplifiers; Power generation; Silicon compounds; Ytterbium;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA, USA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
